On Fri, Mar 15, 2013 at 9:00 AM, Hardy, Elaine <eha...@georgialibraries.org>wrote:
> First off, I think this is a good enhancement and would be very helpful to > all users particularly when searching a large database – a keyword search > for Abraham Lincoln returns over 2400 hits when searching all of PINES…263 > for one of the larger systems. **** > > ** ** > > Mike – would your algorithm mean that, with a title like Team of Rivals > (which had an initial high rate of circulation and holds, then interest > fell off to revive again with the movie), while it is first popular it > rises in the search results, to fall as interest tapers, and then arises > again, using older and newer interest data? That way it might “bump” above > other titles that were popular in that interval more quickly than without > the algorithm?**** > > ** > That's the intent, yes. --miker > ** > > *Elaine***** > ------------------------------ > > > J. Elaine Hardy > PINES Bibliographic Projects & Metadata Manager > Georgia Public Library Service > 1800 Century Place, Ste 150 > Atlanta, Ga. 30345-4304 > > 404.235-7128 > 404.235-7201, fax > eha...@georgialibraries.org > www.georgialibraries.org > www.georgialibraries.org/pines > > > **** > > *From:* open-ils-general-boun...@list.georgialibraries.org [mailto: > open-ils-general-boun...@list.georgialibraries.org] *On Behalf Of *Mike > Rylander > *Sent:* Thursday, March 14, 2013 10:11 PM > *To:* Evergreen Discussion Group > *Subject:* Re: [OPEN-ILS-GENERAL] Activity metric for relevance**** > > ** ** > > Kathy,**** > > ** ** > > Have you considered allowing an aging parameter for some bumps, so that > newer data toward the near end of the horizon is considered more important? > For instance, spikes in circulation might have a larger short term effect > on relevance, but over time, while still being factored into relevance, > would be less important though still considered in the bump logic. I ask > because I have a simple algorithm I'm using in another project, to be > debuted at the conference, that may be portable to this work.**** > > ** ** > > --miker**** > > ** ** > > ** ** > > On Thu, Mar 14, 2013 at 3:53 PM, Kathy Lussier <kluss...@masslnc.org> > wrote:**** > > Hi all, > > MassLNC is working with our partners at MVLC to develop an activity metric > (aka popularity metric) that will allow sites to rank more popular items a > little higher in search results than items that don't see as much activity. > I've raised this idea on the list before. Although Evergreen allows sites > to adjust relevancy based on the appearance of keywords in certain fields, > which is highly useful, our hope is that this additional functionality will > lead to further improvement when ranking results by relevance. > > As an example, if a user were conducting a keyword search on "abraham > lincoln," there are many titles in most US libraries where the words > "abraham lincoln" show up in the title. There would be no way to tease out > the titles that are getting the most attention by readers. In fact, a title > like "Team of Rivals" ranks very low in our search results even though > there is a high likelihood it is the title the patron is seeking. By > applying a metric based on activity, we might be able to see those > more-recently popular titles floating higher in the search results list. > > I would like to share MVLC's proposal outlining the details for > implementing this project. The proposal is available at > http://masslnc.cwmars.org/node/2757. It provides a lot of flexibility in > allowing sites to define what "high activity" means to them. Circulation > activity, holds activity, total copies, and publication age/bib record age > can all be used as an activity metric. > > If you have any feedback or questions, feel free to let us know. > > Kathy > > -- > Kathy Lussier > Project Coordinator > Massachusetts Library Network Cooperative > (508) 343-0128 > kluss...@masslnc.org > Twitter: http://www.twitter.com/kmlussier**** > > > > **** > > ** ** > > -- > Mike Rylander > | Director of Research and Development > | Equinox Software, Inc. / Your Library's Guide to Open Source > | phone: 1-877-OPEN-ILS (673-6457) > | email: mi...@esilibrary.com > | web: http://www.esilibrary.com **** > -- Mike Rylander | Director of Research and Development | Equinox Software, Inc. / Your Library's Guide to Open Source | phone: 1-877-OPEN-ILS (673-6457) | email: mi...@esilibrary.com | web: http://www.esilibrary.com